Blinking instrument cluster
 

Hi guys,
Another strange things that dealer still has not been able to find solution for it.
Basically, the circled area in the attached picture, is randomly blinks for 5-6 seconds, I also lose audio randomly when cluster start blinking . Either i am in Radio, USB, iPhone 4s cradle, bluetooth call, navigation sound during direction, I will lose the sound for few seconds sometimes for almost 30-40 seconds. Also, when i get a very fast blinking one after others, the navigation goes to "Orange" screen and reboot itself, but it is not rebooting too often.
Dealer last month thought the problem is with alternator, and they replaced that part, but only lasted for few week before the same problem started again. Taking the car back to dealer in a week or so, I took the video from this symptom since there is no error code generated and hopefully dealer can talk to their engineering department.
Any thought or experienced with this symptom?

Thanks.

Sorry to bring this back from the dead